I.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) I.e I - Interstitial/parenchymal lung disease
I.e - Acute eosinophilic pneumonia (AEP) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary infiltrates/ILD I.j I - Interstitial/parenchymal lung disease
I.j - Exogenous lipoid pneumonia (subacute, acute) I.r I - Interstitial/parenchymal lung disease
I.r - An imaging pattern consistent with DIP I.ai I - Interstitial/parenchymal lung disease
I.ai - Combined pulmonary fibrosis and emphysema syndrome (CPFE) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.d IV - Airway involvement
IV.d - Cough (lone) IV.g IV - Airway involvement
IV.g - Cough syncope IV.n IV - Airway involvement
IV.n - Obstructive airway dysfunction (see also IVc, XVx) IV.u IV - Airway involvement
IV.u - Endobronchial (eosinophilic) nodules on bronchoscopy IV.ad IV - Airway involvement
IV.ad - Large airway inflammation - Tracheitis (w/wo tissue eosinophilia) IX.q IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.q - Obstructive sleep apnea X.m X - Systemic/Distant conditions, syndromes and reactions
X.m - Vascultis (pulmonary, extrathoracic or systemic)-ANCA status unknown or negative) X.x X - Systemic/Distant conditions, syndromes and reactions
X.x - Subclinical ANCA positivity X.ac X - Systemic/Distant conditions, syndromes and reactions
X.ac - Anti-GBM antibody disease (Goodpasture-like or flare of preexisting GS) X.ah X - Systemic/Distant conditions, syndromes and reactions
X.ah - Granulomatosis with polyangiitis (typically ANCA pos.) - GPA flare XI.m XI - Miscellaneous
XI.m - Pulmonary emphysema - Lung cysts or bullae XI.ag XI - Miscellaneous
XI.ag - Vertebral compression fracture XI.ah XI - Miscellaneous
XI.ah - Fainting XI.an XI - Miscellaneous
XI.an - Disrupted lung surfactant function XIII.a XIII - Neoplastic conditions
XIII.a - Lung cancer XIV.c XIV - Hemoglobinopathies - Abnormal hemoglobin states (acquired)
XIV.c - Carboxyhemoglobinemia XV.k XV - Pathology
XV.k - Path: Desquamative interstitial pneumonia (DIP-pattern) XV.y XV - Pathology
XV.y - Path: Respiratory bronchiolitis (w/wo the RB-ILD-pattern) XV.z XV - Pathology
XV.z - Path: Obliterative (constrictive) bronchiolitis (see also IVc, IVn) XV.ay XV - Pathology
XV.ay - Path: Smoking-related interstitial fibrosis (SRIF). Respiratory bronchiolitis with fibrosis XV.bw XV - Pathology
XV.bw - Path: Airspace enlargement with fibrosis XVI.g XVI - Imaging
XVI.g - Imaging: Diffuse whiteout/alveolar shadowing (see also under IIb-ARDS) XVI.p XVI - Imaging
XVI.p - Imaging: Small irregular opacities - ILA - Diffuse reticulation - 'Dirty lung' XVI.ac XVI - Imaging
XVI.ac - Imaging: A generalized increase in lung density XVII.a XVII - Infections & related conditions
XVII.a - Respiratory tract infection incl. pneumonia